How did you solve this problem? I have the same situation now. Only I have no sound in games. 
	I was also advised to: 
	In Control Panel, open Sound and go to the Playback tab. 
	Select the headset as the primary playback device by right-clicking on it and selecting "Set as default". 
	Then, in the Communications tab, select "Take no action" to prevent switching audio devices during calls. 
	 
	But it doesn't help.